· Quality rating for each study provides a way for practitioners to determine if the study is able to attribute the effect to the causal agent based on the design, scientific rigor and execution of the study.

· Worksheets on selected research studies that provide detailed information on the major findings, methodology, and quality of each study.

· Implication for the practice of water fluoridation in the United States.

· Interviews with scientists who have devoted their careers to research fluoride-related risks and benefits.